lol
Imagery is when a sentence has descriptive details that help you see what the author wrote.
Example: The frail girl crept through the dark, dusty hallway. Her bare feet blue from the cold, stone floors.
so i would say that the sentence you provided was using imagery :)
The causal relationships among plot events in ancient Greek tragedy stem from the belief that nothing happens by chance.
Everything that happens is already predetermined, and there is nothing you can do to change it - they didn't believe in chance, but in destiny.